/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.solr.search;

import org.apache.lucene.search.Query;
import org.apache.solr.common.params.SolrParams;
import org.apache.solr.common.util.NamedList;
import org.apache.solr.request.SolrQueryRequest;
import org.apache.solr.schema.FieldType;
import org.apache.solr.schema.SchemaField;

/**
 * Create a field query from the input value, applying text analysis and
 * constructing a phrase query if appropriate. <br>
 * Other parameters: <code>f</code>, the field <br>
 * Example: <code>{!field f=myfield}Foo Bar</code> creates a phrase query with
 * "foo" followed by "bar" if the analyzer for myfield is a text field with an
 * analyzer that splits on whitespace and lowercases terms. This is generally
 * equivalent to the Lucene query parser expression
 * <code>myfield:"Foo Bar"</code>
 */
public class FieldQParserPlugin extends QParserPlugin {
	public static String NAME = "field";

	public void init(NamedList args) {
	}

	@Override
	public QParser createParser(String qstr, SolrParams localParams,
			SolrParams params, SolrQueryRequest req) {
		return new QParser(qstr, localParams, params, req) {
			@Override
			public Query parse() {
				String field = localParams.get(QueryParsing.F);
				String queryText = localParams.get(QueryParsing.V);
				SchemaField sf = req.getSchema().getField(field);
				FieldType ft = sf.getType();
				return ft.getFieldQuery(this, sf, queryText);
			}
		};
	}
}
